Panasonic SA-EN37, Service Manual

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Type 1 Way, 1 speaker system
Speaker(s) 8 cm (5 1/2”) cone type 6
W
Impedance 6
W
Input power 3 (MAX)
Dimension (W x H x D) 121 mm x 236 mm x 146 mm
(4 3/4” x 9 9/32” x 5 3/4”)
1 Safety Precautions 4
1.1. General Guidelines 4
1.2. Caution for fuse replacement 5
1.3. Before repair and adjustment 5
1.4. Protection Circuitry 5
1.5. Safety Parts Information 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 6
3 Precaution of laser diode 7
4 Handling Precautions For Traverse Unit 7
5 About Lead Free Solder (PbF) 9
5.1. Service caution based on legal restrictions 9
6 Accessories 10
7 Operation Procedures 11
7.1. Remote Control Key Buttons Operations 11
7.2. Main Unit Key Buttons Operations 11
7.3. Connection 12
8 Self diagnosis and special mode setting 13
8.1. Service Mode Summary Table 13
8.2. Service Mode Table 1 13
8.3. Error Code Table 1 16
9 Assembling and Disassembling 17
9.1. Caution 17
9.2. Disassembly flow chart 18
9.3. Main Components & P.C.B. Locations 19
9.4. Disassembly of rear cabinet 20
9.5. Disassembly of D-Port P.C.B. 20
9.6. Disassembly of Panel P.C.B. & LED P.C.B. 20
9.7. Disassembly of Main P.C.B., Sensor P.C.B. & Tuner
P.C.B. 21
9.8. Disassembly of Switch P.C.B. & Traverse Unit 21
9.9. Disassembly of Power Switch P.C.B. & Tact Switch P.C.B.
22
9.10. Replacement of Traverse Cover 22
9.11. Disassembly of CD Servo P.C.B. 23
9.12. Disassembly of Motor Unit & Motor P.C.B. 24
9.13. Disassembly of CD Block & CD Lid 25
9.14. Disassembly of Speakers 26
Power consumption in standby mode:
2.0 W (appx.)
Notes:
·
Specifications are subject to change without notice.
· Mass and dimensions are approximate.
10 Service Fixture and Tools 29
11 Service Positions 29
11.1. Check and Repair of CD Servo P.C.B. 30
11.2. Check and repair of Main P.C.B., Sensor P.C.B., Tuner
P.C.B., Motor P.C.B., D-Port P.C.B., Panel P.C.B., LED
P.C.B., Power Switch P.C.B., Tact Switch P.C.B. & Switch
P.C.B. 31
12 Voltage and Waveform Chart 32
12.1. Main P.C.B. 32
12.2. CD Servo P.C.B. 33
12.3. Motor P.C.B. 33
12.4. Panel P.C.B. 33
12.5. Tuner P.C.B. 33
12.6. Waveform Chart 34
13 Wiring Connection Diagram 35
14 Block Diagram 37
14.1. CD Servo 37
14.2. Tuner 38
14.3. Main (1/2), Transformer, Sensor & D-Port 39
14.4. Main (2/2), Panel, LED, Power Switch, Tact Switch, Switch
& Motor 40
15 Notes of Schematic Diagrams 41
16 Schematic Diagram 43
16.1. (A) CD Servo Circuit 44
16.2. (B) Tuner Circuit 45
16.3. (C) Main Circuit 46
16.4. (D) Panel Circuit & (E) D-Port Circuit 49
16.5. (F) LED Circuit, (G) Power Switch Circuit, (H) Tact Switch
Circuit & (I) Switch Circuit 50
16.6. (J) Motor Circuit, (K) Sensor Circuit & (L) Transformer
Circuit 51
17 Printed Circuit Board 53
17.1. (A) CD Servo P.C.B. & (B) Tuner P.C.B. 54
17.2. (C) Main P.C.B. 55
17.3. (D) Panel P.C.B., (E) D-Port P.C.B., (F) LCD P.C.B., (G)
Power Switch P.C.B. & (H) Tact Switch P.C.B. 56
17.4. (I) Switch Circuit P.C.B., (J) Motor Circuit P.C.B., (K)
Sensor Circuit P.C.B. & (L) Transformer P.C.B. 57
CONTENTS
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SC-EN37P